20195812

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{491}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 43972992

約数和(自身を除く): 23777180

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 113, 182, 226, 364, 452, 491, 791, 982, 1469, 1582, 1964, 2938, 3164, 3437, 5876, 6383, 6874, 10283, 12766, 13748, 20566, 25532, 41132, 44681, 55483, 89362, 110966, 178724, 221932, 388381, 721279, 776762, 1442558, 1553524, 2885116, 5048953, 10097906, 20195812]

約数ペア:

[(1, 20195812), (2, 10097906), (4, 5048953), (7, 2885116), (13, 1553524), (14, 1442558), (26, 776762), (28, 721279), (52, 388381), (91, 221932), (113, 178724), (182, 110966), (226, 89362), (364, 55483), (452, 44681), (491, 41132), (791, 25532), (982, 20566), (1469, 13748), (1582, 12766), (1964, 10283), (2938, 6874), (3164, 6383), (3437, 5876)]